Who Knows Emissions?

[CJKarl]

So the JEEP passed with flying colors, but I don't know what the #s mean.
This is with an after market carb and NO emission stuff excepr for the cat.

HC (PPM) Limit 340
Actual 104


CO (%) Limit 5.54
Actual 1.49



NOx (PPM) Limit 7667
Actual 1383


It also says HorsePower 15.6 Does this mean my rig has 156 HP?

 

[NomadJeep]

HC= Hydrocarbons
CO= Carbon Monoxide
NOX= Nitrous Oxide

HYDROCARBONS

Hydrocarbon emissions result when fuel molecules in the engine burn only partially. Hydrocarbons react in the presence of nitrogen oxides and sunlight to form ground-level ozone, a major component of smog. Ozone irritates the eyes, damages the lungs, and aggravates respiratory problems. It is our most widespread and intractable urban air pollution problem. A number of exhaust hydrocarbons are also toxic, with the potential to cause cancer.

CARBON MONOXIDE

Carbon monoxide (CO) is a colorless, odorless, poisonous gas. A product of incomplete burning of hydrocarbon-based fuels, carbon monoxide consists of a carbon atom and an oxygen atom linked together. In 1992, carbon monoxide levels exceeded the Federal air quality standard in 20 U.S. cities, home to more than 14 million people.

Carbon monoxide results from incomplete combustion of fuel and is emitted directly from vehicle tailpipes. Incomplete combustion is most likely to occur at low air-to-fuel ratios in the engine. These conditions are common during vehicle starting when air supply is restricted ("choked"), when cars are not tuned properly, and at altitude, where "thin" air effectively reduces the amount of oxygen available for combustion (except in cars that are designed or adjusted to compensate for altitude).

Two-thirds of the carbon monoxide emissions come from transportation sources, with the largest contribution coming from highway motor vehicles. In urban areas, the motor vehicle contribution to carbon monoxide pollution can exceed 90 percent.

NITROGEN OXIDES (NOx)

Under the high pressure and temperature conditions in an engine, nitrogen and oxygen atoms in the air react to form various nitrogen oxides, collectively known as NOx. Nitrogen oxides, like hydrocarbons, are precursors to the formation of ozone. They also contribute to the formation of acid rain.

Catalytic converters, the part of car exhaust systems designed to break down nitrogen gases are actually forming nitrous oxide - 300 times more potent than carbon dioxide as a greenhouse gas. Nitrous oxide makes up about 7.2 percent of the gases cited in global warming, the USA EPA said in a study published spring 1998. Vehicles fitted with catalytic converters produced nearly half of that nitrous oxide. Nitrous oxide also comes from nitrogen-based fertilizer and manure from farm animals.

 

[pyagid]

horespower i believe is just what it ran at on there rollers/ dyno It was not a horsepower run so it did not put out that much. I know some testing locations were having problems with thir rollers, b/c people were trying to us it as a dyno and blowing the bearings in it

-Paul

 

[NomadJeep]

[No message]

 

[NomadJeep]

The standard are high for older vehicles, but what it is telling you is you Jeep did good. You are not burning to much oil, timing is good, plugs wire etc... so you HC is fine,

being you have a carburetor, it is surprising but you CO is good, this is a common result with a bad air fuel mixture.. (Lean/Rich) or PCV

Your NOX is good which is commonly rustled with high engine temps or improper exhaust gas recirculation, ie: EGR valve, Catalytic Converter

 

[CJKarl]

Thanks for the "enlightenment"

 

[DonnyG]

BWAAHAAHAAA!!!!!! :rotflmao: Karl's CJ only has 15.6 Horsepower!!!! My lawn mower has 20!!!